B757-200 crew had a left hydraulic system fluid loss in international caribbean airspace.

Attributes
ACN	571077
Time
Date	200301
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zma.artcc
State Reference	FL
Altitude	msl single value : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zma.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	571077
Person 2
Function	flight attendant : on duty
Qualification	flight attendant : currently qualified flight attendant aircraft qualified on : 5
Experience	flight attendant time airline total : 14 flight attendant time total : 14 flight attendant time type : 70
ASRS Report	571358
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : eicas hyd system display other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist flight crew : declared emergency flight crew : diverted to another airport flight crew : landed in emergency condition other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

En route from sju to ZZZ, the left hydraulic system began to lose fluid. As a precautionary measure, we declared an emergency and diverted into mia. We made an overweight landing on runway 27L. The landing was smooth and uneventful. Crash fire rescue equipment were on the scene. Supplemental information from acn 571358: no 'planned emergency' checklist to accomplish. Just be ready if he gives the signal to evacuate/evacuation. Basically, no evacuate/evacuation was necessary.

Original NASA ASRS Text

Title: B757-200 CREW HAD A L HYD SYS FLUID LOSS IN INTL CARIBBEAN AIRSPACE.

Narrative: ENRTE FROM SJU TO ZZZ, THE L HYD SYS BEGAN TO LOSE FLUID. AS A PRECAUTIONARY MEASURE, WE DECLARED AN EMER AND DIVERTED INTO MIA. WE MADE AN OVERWT LNDG ON RWY 27L. THE LNDG WAS SMOOTH AND UNEVENTFUL. CFR WERE ON THE SCENE. SUPPLEMENTAL INFO FROM ACN 571358: NO 'PLANNED EMER' CHKLIST TO ACCOMPLISH. JUST BE READY IF HE GIVES THE SIGNAL TO EVAC. BASICALLY, NO EVAC WAS NECESSARY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.